hi there
i always use black and white images rather than black, white & greys.
i always find when scanning you always end up spending more time fixing the graphics
when using the prism scan.
if you can.
try scanning it in colour.
save it.
import the image into signlab.
then select the on screen didtising tool.
(this is the pen type tool.)
start tracing the image with first pen in a series of clicks.
if you want to do a curve then right click. select the circle object then carry on when you come to a straight area right click again & select the cross object.
remember to finish where you started to close the shape.
this may sound confusing but is very straight forward once you try it…
its quick also considering all the messing around you have to do when scanning.
if you have any more questions just ask…
happy new year!